Adjustable Window Security Bar, Sliding Door Safety Lock, Sliding Glass Door Security Bar & Child Safety Lock, Works Great with Window Alarms for Home Protection – Regular – (2 Devices)

8 Ways To Protect & Secure A Sliding Glass Door | Residential Security

Amazon.com: BsBsBest Sliding Door Security Bar 16.5" to 51" Sliding Door Lock 2 Pack Heavy Duty Sliding Glass Patio Door Window Security Bar Inside Childproof Adjustable Interior Extra Long White : Tools & Home Improvement